S. B. Bhagat, Y. B. Sutar, Y. Manohar, and V. N. Telvekar, “Diphosphorus Tetraiodide (P2I4): An Efficient Catalyst for Synthesis of 2-Aryl-1,3-benzazoles via Cyclocondensation of o-Amino/Mercaptan/Hydroxy Anilines with Aryl Acids”, ajc, vol. 30, no. 2, pp. 376–380, Dec. 2017.